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OpenAdvisories
Medium ALSA-2026:20587 1 CVE

Moderate: glibc security update

Published May 26, 2026 · Updated Oct 29, 2026

Summary

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es):

* glibc: glibc: Denial of Service via iconv() function with specific character sets (CVE-2026-4046)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 214

ReleasePackageFixed in
AlmaLinux · 8 compat-libpthread-nonshared 2.28-251.el8_10.37
AlmaLinux · 8 glibc 2.28-251.el8_10.37
AlmaLinux · 8 glibc-all-langpacks 2.28-251.el8_10.37
AlmaLinux · 8 glibc-benchtests 2.28-251.el8_10.37
AlmaLinux · 8 glibc-common 2.28-251.el8_10.37
AlmaLinux · 8 glibc-devel 2.28-251.el8_10.37
AlmaLinux · 8 glibc-doc 2.28-251.el8_10.37
AlmaLinux · 8 glibc-gconv-extra 2.28-251.el8_10.37
AlmaLinux · 8 glibc-headers 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-aa 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-af 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-agr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ak 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-am 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-an 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-anp 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ar 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-as 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ast 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ayc 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-az 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-be 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bem 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ber 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bg 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bhb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bho 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-br 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-brx 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-bs 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-byn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ca 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ce 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-chr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-cmn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-crh 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-cs 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-csb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-cv 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-cy 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-da 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-de 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-doi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-dsb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-dv 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-dz 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-el 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-en 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-eo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-es 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-et 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-eu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fa 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ff 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fil 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fur 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-fy 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ga 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-gd 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-gez 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-gl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-gu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-gv 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ha 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hak 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-he 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hif 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hne 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hsb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ht 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-hy 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ia 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-id 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ig 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ik 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-is 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-it 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-iu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ja 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ka 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kab 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kk 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-km 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ko 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kok 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ks 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ku 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-kw 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ky 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lg 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-li 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lij 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ln 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lt 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lv 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-lzh 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mag 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mai 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mfe 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mg 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mhr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-miq 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mjw 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mk 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ml 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mni 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ms 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-mt 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-my 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nan 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nb 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nds 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ne 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nhn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-niu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-nso 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-oc 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-om 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-or 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-os 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-pa 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-pap 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-pl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ps 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-pt 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-quz 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-raj 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ro 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ru 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-rw 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sa 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sah 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sat 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sc 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sd 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-se 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sgs 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-shn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-shs 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-si 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sid 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sk 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sm 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-so 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sq 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ss 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-st 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sv 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-sw 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-szl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ta 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tcy 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-te 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tg 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-th 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-the 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ti 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tig 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tk 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tl 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tn 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-to 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tpi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tr 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ts 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-tt 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ug 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-uk 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-unm 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ur 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-uz 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-ve 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-vi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-wa 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-wae 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-wal 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-wo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-xh 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-yi 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-yo 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-yue 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-yuw 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-zh 2.28-251.el8_10.37
AlmaLinux · 8 glibc-langpack-zu 2.28-251.el8_10.37
AlmaLinux · 8 glibc-locale-source 2.28-251.el8_10.37
AlmaLinux · 8 glibc-minimal-langpack 2.28-251.el8_10.37
AlmaLinux · 8 glibc-nss-devel 2.28-251.el8_10.37
AlmaLinux · 8 glibc-static 2.28-251.el8_10.37
AlmaLinux · 8 glibc-utils 2.28-251.el8_10.37
AlmaLinux · 8 libnsl 2.28-251.el8_10.37
AlmaLinux · 8 nscd 2.28-251.el8_10.37
AlmaLinux · 8 nss_db 2.28-251.el8_10.37
AlmaLinux · 8 nss_hesiod 2.28-251.el8_10.37

Vulnerabilities 1

  • High 7.5

    iconv crash due to assertion failure with untrusted input

    The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be triviall…

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-4046
  • report
    https://bugzilla.redhat.com/2453117
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-20587.html